function _swapImage(img){
	var imglist = img.split(",");
	var selectnum = Math.floor((Math.random() * imglist.length));
//	var selectnum = Math.floor((Math.random() * 100)) % imglist.length;
	var output = "<img src=" + imglist[selectnum] + " style='float : right;'  border='0'>";
	document.write(output);
	return;
}